Mahmudah, R. L., Z. Ikawati, and D. Wahyono. “A QUALITATIVE STUDY OF PERSPECTIVES, EXPECTATIONS AND NEEDS OF EDUCATION IN CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD)”. International Journal of Current Pharmaceutical Research, vol. 9, no. 1, Dec. 2016, pp. 32-35, doi:10.22159/ijcpr.2017v9i1.16601.